138198081

素因数分解:

$3^1\times 7^2\times {\mathrm{509}}^1\times {\mathrm{1847}}^1$

素因数の和:2373

約数の個数: 24

約数和(自身を含む): 214885440

約数和(自身を除く): 76687359

約数列:

[1, 3, 7, 21, 49, 147, 509, 1527, 1847, 3563, 5541, 10689, 12929, 24941, 38787, 74823, 90503, 271509, 940123, 2820369, 6580861, 19742583, 46066027, 138198081]

約数ペア:

[(1, 138198081), (3, 46066027), (7, 19742583), (21, 6580861), (49, 2820369), (147, 940123), (509, 271509), (1527, 90503), (1847, 74823), (3563, 38787), (5541, 24941), (10689, 12929)]